Computer Concepts Module 5 Practice Exam

UTF-8 is widely used on the internet because it combines compatibility with ASCII and flexible, Unicode-wide encoding. The first 128 characters of Unicode match ASCII exactly, so any ASCII text is automatically valid UTF-8. This makes data exchange across systems and protocols smooth since existing ASCII-based content remains readable without special handling. At the same time, characters outside ASCII are encoded with two, three, or four bytes, allowing the entire Unicode repertoire to be represented without wasting space on simple English text. That mix of ASCII backward compatibility and variable-length encoding is what makes UTF-8 both efficient for everyday English content and capable of representing text from many languages, which is why it’s so widely adopted. It doesn’t require special decoding tools because standard software and web protocols support UTF-8, and it isn’t limited to English.